| date | black | white | result | #mv | sgf |
|---|---|---|---|---|---|
| 1980-08-07 | Kojima Takaho | Sakai Takeshi | W+R | 246 | sgf |
| 1980-08-14 | Umeki Suguru | Shiraishi Yutaka | W+0.5 | 241 | sgf |
| 1980-09-11 | Hashimoto Shoji | Kobayashi Koichi | B+R | 181 | sgf |
| 1980-09-25 | Honda Kunihisa | Ishida Yoshio | B+5.5 | 261 | sgf |
| # | player | result | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1. | Kato Masao | 3-4 | B+R | B+R | W+5.5 | W+R | ||||
| 2. | Rin Kaiho | 5-2 | W+1.5 | W+4.5 | W+3.5 | |||||
| 3. | Sakata Eio | 3-4 | W+R | B+R | W+R | W+R | ||||
| 4. | Cho Chikun | 7-0 | W+7.5 | W+R | W+R | |||||
| 5. | Hashimoto Shoji | 3-4 | W+6.5 | W+7.5 | B+2.5 | W+T | ||||
| 6. | Shiraishi Yutaka | 1-6 | B+R | B+R | B+R | |||||
| 7. | Honda Kunihisa | 3-4 | B+2.5 | W+R | W+2.5 | B+R | ||||
| 8. | Sakai Takeshi | 3-4 | W+R | B+R | W+R |
Shiraishi Yutaka, Sakai Takeshi, Honda Kunihisa and Hashimoto Shoji are demoted.
| date | black | white | result | #mv | sgf |
|---|---|---|---|---|---|
| 1981-05-26,27 | Takemiya Masaki | Cho Chikun | W+R | 144 | sgf |
| 1981-06-03,04 | Cho Chikun | Takemiya Masaki | B+R | 195 | sgf |
| 1981-06-16,17 | Takemiya Masaki | Cho Chikun | W+3.5 | 236 | sgf |
| 1981-06-23,24 | Cho Chikun | Takemiya Masaki | W+R | 228 | sgf |
| 1981-07-08,09 | Takemiya Masaki | Cho Chikun | B+R | 183 | sgf |
| 1981-07-15,16 | Cho Chikun | Takemiya Masaki | B+3.5 | 246 | sgf |
Cho Chikun won with 4-2.